Mumbai University > Mechanical Engineering > Sem 4 > Material Technology

Marks: 5M

Year: Dec 2015

Almost all alloying elements(except,Al,Co,Si) increases the stability of supercooled austenite and retard both proeutectoid and the pearlitic reaction and then shift TTT curves of start to finish to right or higher timing.This is due to i)low rate of diffusion of alloying elements in austenite as they are substitutional elements,ii)reduced rate …